Rothenstein David M sold CIEN
August 14, 2026 · Form 4 insider transaction
Rothenstein David M sold 2,500 shares of Ciena Corporation at $438.10 per share, a transaction worth $1.10M. The trade was recorded as open-market sale under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 4 days after the transaction.
Direction
Disposed (sell-side)
Shares
2,500
Price
$438.10
Total value
$1.10M
InsiderRothenstein David M
Role—
CompanyCiena Corporation (CIEN)
SecurityCommon Stock
Transaction codeS: Open-market sale
Transaction dateAugust 14, 2026
Filing dateAugust 18, 2026
Shares owned after180,231
OwnershipDirect
10b5-1 planYes
AmendedNo
Footnotes
Sales were affected pursuant to Rule 10b5-1 trading plan dated 10/10/2025.; Shares reported include unvested Restricted Stock Units (RSUs) and Performance Stock Units (PSUs).